aubbey edmund westwood



March 8, 1932. A. E.-WESTWOOD LIQUID SOAP CONTAINER Filed Jan. 25. 1931I nvenfir 1511579311 PVsZlvooJ If f cording to the inventionis shown inthe ac- Patented Mar. 8, 1932 UNITED S ATES PAT Nt OFFICE AU REY EDMUNDwns'rwoon, or woo'rron wAwEN; ENGLAND LIQUID SOAP CONTA ER Applicationfiled January 23, 1931. Serial No. 510,802, n in Great Britain February4, 1930.

This invention relates to containers for liquid soap and has for itsobject the provision of means whereby the definite discharge of a'sufiicient quantity of soap is obtained 5 with a minimum ofef'fort.further object is the prevention of-leakage when the container is notin'use. I I y In mypatent specification No. 1,742,676 there is describedan oil can which is pro- 10 vided with an internal pumping mechanismlever efiects the discharge of a suflicient quan- 'tity of soap, thelatter being brought 'into position for discharge by means of aninternal pumping mechanism consisting of a hollow piston and cylinderfitted with valves "and internal return springs, the said cylinderworking upwardly over the piston and being connected with the operatinglever, the major portion of. which, or at leastthe' end thereof which isconnected to h Pumping mecha nism, is within said container.

For retaining the liquid soap 1n position-- i for discharge andpreventingleakage when the container is not in use the outlet orificethrough which the soap is discharged is provided with a valve by meansof which the outlet orifice closed when the device is not in use. I Apreferred construction of the device accompanying drawings in which aliig'; 1 is r a vertical sectional view, of the containerycertain oftheparts being shown in elevation; 8

Figs. 2 and 3 are part-sectional views of the upper part of the.container showing modifications in the position and constructionof theoperating lever.

, Referring first to Fig. 1; the container comprises a body 4, which maybe of any suitable soap in which depression of anoperating depressingthe knob 14 the lever turns about spring. Onrelease of the lever thecylinder a communicating passage "between the inside shape'but ispreferably of such cross section 1 that oneside thereof is substantiallyfiat so I that, the container may be affixed to a wall or thelike bymeans of a flat strip or bracket 5 attached to the body, and the latteris pro v-ided with a tightly fitting'lid 6 Which is removable forfilling the container or inspection or removal of the operatingmechanism.

- The pumping mechanism, which is entirely 7 separate from the body andmay easily be detached therefrom, consists of ahead 7 to which isattached a hollowpiston 8 on which is slidably mounted a movablecylinder 9. The, piston is of uniform diameter through; out its lengthand both piston and cylinder are provided with internal return springsand ball valves and in construction and 0 eration are exactly asdescribed in-the a me. mentioned specification; Asfshown in the.

present construction the cylinder'is provided V lever, the/major portionof which is within the casing; is provided at its other end with a knob1e and is bent upwards to pass through a suitable slot 15 in the lid ofthe container. The lower part of the lever, extending from the slottedend to the point 16 at which it is bent upwards, is as "shown, normallyhorizontal and rests on the top'of the head 7. On

the point 16 as a fulcrum, the slotted end is raised and the cylinderdrawn upwards against the action of its internal return is returned toits initial position by its return spring, this action bringing thelever back to normal position.

. The'head7 is boredinternally to provide of the hollow piston 8 and adischarge tube v17 which 'is'attached to the head and is of such lengththat it extends beyond the bottom of'the containcrwhen thepumpingmechanism is in position inside the, container. The

end with a conical seating 18 for a nonreturn needle valve 19 which isheld closed by means of a spring 20 hearing against an internal shoulderon the delivery nozzle 21. This nozzle 21 is screwed on to the end ofthe tube 17 and also serves to retain the mechanism in position ashereinafter described.

The body is provided internally with a socket 22 adapted to receive studor lug 23 on the end of the head remote fronrthedischarge tube. 011the-other side lot the con tainer, opposite to the socket 22, isprovided an openended tube 24 through whi'chpasses the discharge tube17. The tube 24 is sealed into the bottom of the 'containerand it-is ofsuch a length that when the pumping mech- 'anismzis linp'osition theundersideof the head just restson the upper end'of the tube. The socket22 andtube 24 serve to position the internalmechanism correctly and areprefera'bly arranged so thatthelatter is located approximately at thecentrelof thecontainer, the bottom ofwhichis curved downwardly fromeither end towards thecentre, in a direction transverse tothe planeofthes'ection inFig. 1, so'thatwhen the level of liquid in'the containerisnear the bottom there is always siiflicient to cover the endof thepump cylinder. "l/V'hen the mechanism-is in position'the lug'23 fitsinto. socketi22 and 'the discharge tube '17 extends through the tube24,'projecting beyond the lower end of -h6ldin he internal mechanism fiy in the latter as above described. The' nozzle f2l'isscrewed' on''theiendoi the tube-17 until it abuts against the lower end of tube '24thus position. Totafke out" the mechanism it is only necessary to'remove'the lid and 'the nozzle 21 when the wholemechanism can depressing theknob 14 the cylinder is moved -upwardly over the piston and a certainquantity of liquid isforced .intothe head 'Zand the discharge tube 17.

The liquid. will not immediately be ejected however, due to the "actionof the valve 19. This valve'will not openuntil the pressure of liquid issufiicient "to'overcome' the action'of the; spring 20 and thispressure'will usually not be sufiicient until two or three initialstrokeso'f the pump have been made. V Whenthe liquid "pressure "reachesa: point at which. it nearly overcomes the .force otthe'i'spring thenext stroke of the pump will -causethe'liquid already in the tube tobeejected in a steady stream which "ceases immediately on completionfofthe-pum stroke the outlet orifice being positivel closed by the valve19. Once the head and i tube'havebeen initially filled, however, each'"depression'of the knob 14(i; e. each pump str'oke)-' will-cause theliquidfwhich was forced-intothe tube 17 by theprevious stroke of thepump to be ejected through the nozzle. The valve 19 also preventsleakage of any liquid by closing the outlet orifice when the device isnot in use.

In Fig. 2 is shown a similar arrangement in which the lever is arrangedso that the knob 14 has to be pushed inwards towards the container tooperate thedevice. In this case the lever '12, instead of beingfulcrumed "on the head 7, is fulcrumed on the lower edge "Of the slotthrough which it'passes, this edge being actually the top edge of thebody 4.

i In Fig.3 the arrangement is shown for actuation from the top of thecontainer; the -knob 14-is not-provided on the end of the lever itselfbut is attached to the top-of a rod '25 which slides in it-tubularbearing 26, the other end- "of the rod bearing on'the lever to causepivoting of the latter when the knob is depressed.

'What I claim as my invention and desire to secure LettersPatent is a1.- A device for ejecting a predetermined quantity of liquid, such asliquid soap, comprising in combination a container consisting of abody-portion and a lid portion; pumpingmechanisnrarranged internally of1 said body portion, said pumping mechanism comprising a-hollow head, acommunicating hollow piston fixed thereon, a cylinder work- 1 ing oversaid piston, ball-valves in said piston and said cylinder and a returnspring inside said cylinder; an operating'lever fulcrumed 3 on saidheadand projecting through sa'id-lid; a rod connecting the inner end ofsaid lever andsaid cylinder; a dischargelpipe'projecting downwardly fromsaid head through the bot- ..-tom of the container; atube secured-tosaidcontainer and surrounding -said discharge pipe; a nozzle on the outerendof saidpipe and anon-return valve within said nozzle whichnormally-closeslthe end of said'discharge pipe. Y 2. A device forejecting aipredetermined quantity of liquid, such as liquid soap,comprising in combination a container consisting of a body portionwanda: lid portion; pumping mechanism arranged internally of :said bodyportion; said pumpingmechanism comprising anrelongated hollow head, acom-1 municating hollow piston fixed thereon, a cylinderworking-overisaid piston, ballvalves in said piston and said cylinderand a return 2 spring inside said cylinder ;vsaid *pumpingmechani-smbeing entirely'separate from the body of the containerfandremovable r'therefrom; an operating lever fulcrumed on said head'andprojecting through'said lid; a-rod connecting the inner end ofsa'idleverand said cylinder; a lug on one end'of said'head; a socket on thebody-portion of said container to receive said lug; a discharge pipeextending downwardly from" the other end of said head'and' projectingthrough the bottom on:

the container; a tube attached to the body of said container to receivesaid discharge pipe a nozzle screwed on the projecting end of saidischarge pipe so that upon removal of said nozzle the whole of thepumping mechanism and said discharge pipe may be removed from saidcontainer; and a spring-biased non-return valve within said nozzlenormally c10s ing the end of said discharge pipe. AUBREY EDMUNDWESTWOOD.

